Couplings brochure UK - Autogard

AUTOFLEX

METAL MEMBRANE COUPLINGS

AUTOFLEX METAL MEMBRANE

Contents & Coupling Application Configurations

Coupling Type Typical Application Series Page No

Introduction - 2
Metal Membrane Configuration 3&4
Coupling Selection
Service Factors

High Performance High Performance Couplings are HP - RM 5
Turbo - Compresssor designed to the highest specifications. HP - RZ
Couplings These couplings are designed using state HP - MS
of the art finite element analysis. The couplings
have been optimised for high speed and high
torque duties.

Spacer Couplings. Spacer Couplings utilising two metal ED 6
Double Flex membrane packs will accommodate angular, ES 7&8
(Two Metal Membranes axial and offset misalignment. The driving and CD
packs) driven shaft ends are separated allowing ECS 9
for installation and maintenance without HRII 10 & 11
moving the connected equipment. These HFTII
couplings are offered both in API* and 12
non-API configurations. 13

Close Coupled Close Coupled Couplings utilising two CCA 14 & 15
Double Flex metal membrane packs will accommodate CCR 16 & 17
(Two Metal Membranes angular, axial and offset misalignment.
packs) The driving and driven shaft separations
tend to be very close (e.g. 3mm).

Single Flex Single Flex Couplings are capable of EB 18 & 19
(One Metal Membrane accommodating angular and axial CB 20
packs) misalignments which are commonly found
in three bearing applications such as fans,
blowers and sprocket drive pulleys.
Single Flex couplings cannot accommodate
offset misalignments.

Cooling Tower Couplings Cooling Tower Couplings utilise two metal CT ES 21
Double Flex membrane packs, which will accommodate CT ECS 22
(Two Metal Membranes angular, axial and offset misalignment. Shaft
packs) separations are generally long and thus the
coupling is supplied with a carbon fibre
composite spacer tube.

Faxback Form Information for the Selection of 23
Autoflex Couplings.

* API - American Petroleum Institute
The specifications contained within this brochure are correct at the time of going to print. Autogard is continually reviewing and upgrading the specifications
on all its product range and therefore reserve the right to change any details.

2

AUTOFLEX METAL MEMBRANE COUPLINGS

The Autoflex Metal Membrane Coupling is designed to provide a highly reliable connection for rotating
equipment. The coupling requires no lubrication and thus is maintenance free. Properly installed, the
coupling is designed to provide infinite life.

Autoflex Advantages
Metal membrane coupling construction provides optimum
power and misalignment capability

Cartridge transmission unit provides for easy assembly while
maintaining an inherent balance to AGMA class 9.

The Autoflex has an optional design to handle non-standard
DBSE* using factory assembled Guard Ring Packs which are
bolted to a standard spacer tube.

Membranes are made from high strength 301 stainless steel.

Hubs have been optimised to provide a larger bore capacity.

All steel parts are phosphate coated.

ATEX Approval
The range of Autoflex Couplings has been approved under ATEX
directive 94/9/EC - for use in potentially explosive gas and dust
atmospheres.

I M2 . II 2 GD ANTIWINDAGE Reduced windage configuration which also provides
ANTIFLY an inherent fail-safe feature in the unlikely event of
GUARD RING membrane failure.

OVERLOAD COLLAR SPACER BOLTS Overload collars also provide an inherent fail-safe feature,
protecting the membrane in the event of severe transient
torque overloads.

Coupling performance is enhanced using high grade
washers with an optimised radius profile.

Higher grades of dynamic balance are possible through the
elimination of balance tools. Gagging is achieved by locking
the guard ring to the spacer flange.

The Autoflex membrane has been optimised using finite
element analysis. This has resulted in a waisted link design
which provides more flexibility and thus substantially lower
reaction forces on the bearing of the connected equipment.
The stresses through the new membrane design are uniform
and are inherently low due to the reduced weight and
inertia of the pack. The membranes have been designed to
provide for infinite life utilising a safety factor of 2 times on
the Modified Goodman Diagram.

*DBSE - Distance Between Shaft Ends

3

AUTOFLEX METAL MEMBRANE COUPLINGS

Coupling Selection Membrane Configurations

Method The standard Flexible Membrane Pack is available in four, six and
Data required for Coupling Selection. eight link designs to meet various torque, speed and
• Application details (for service factor) misalignment conditions.
• Power and rpm of the driver
• Shaft details of the driving and driven equipment 4 Link Membrane Pack
Four link membrane pack designs offer maximum misalignment
(1) Determine the service factor (SF) from the application and are ideal for low torque applications in which the reaction
and classification lists noted below. forces on the bearings must be kept to a minimum.

(2) Calculate the maximum kW/1000 rpm rating: 6 Link Membrane Pack
kW/1000rpm = (kW x 1000 x SF) / rpm Six link membrane pack designs offer the optimum torque
Select the coupling which has a higher max rating. carrying capacity and flexibility making it the preferred choice
for the standard Autoflex coupling product range.

8 Link Membrane Pack
Eight link membrane pack designs offer high torque carrying
capacity suited for motor or generator drives with high peak
torque and lower misalignment requirements.

Example
Driver: Water Turbine (75 kW at 1500 rpm)
Driven equipment: Screw Compressor

Turbine Bore: 60mm Compressor Bore: 50mm.
Distance Between Shaft Ends: (DBSE): 140mm

Service Factor for the Water Turbine &
Screw Compressor: SF=2

kW/1000rpm = (75kW x 1000 x 2) / 1500
kW/1000rpm = 100

(3) Check the Limiting Conditions: Coupling selection based on the maximum rating - ES 130-6
a Check the hub bore capacity is suitable Coupling Bore Capacity: 70mm
b Check the speed capability and specify whether Maximum speed for the ES 130-6 is 7100 rpm Unbalanced
the coupling requires balancing. Minimum Allowable DBSE: 73mm (Solid Spacer)
c Check coupling dimensions such as DBSE*,
Overall Length and Outside Diameter. Ordering Example DBSE (where applicable)
Series Size Links 140
*DBSE - Distance Between Shaft Ends ES 130 6

Service Factors - SF

Load Characteristics Electric Motor, Steam Engine, 6 Cyl. Recip. Engine 4 Cyl. Recip. Engine
Steam Turbine Water Turbine, 2.0 2.5
Constant Torque 8 Cyl. Recip. Engine 2.5 3.0
eg. Centrifugal pumps, compressors & Gas Turbine 3.0 3.5
blowers, light duty agitators and fans. 1.5 3.5 4.0
1.0 4.0
Slight Fluctuations Consult Factory
eg. Slurry pumps, Screw compressors, 1.5 2.0 Consult Factory Consult Factory
Lobe and Vane Blowers.
2.0 2.5
Moderate Fluctuations and/or
Slight Shock Loads 2.5 3.0
Double acting pumps, Recip. Comp.
3.0 3.5
Large Fluctuations and/or
Moderate Shock Loads Consult Factory Consult Factory
1 or 2 Cylinder Recip.pumps.

Shock Loads or
Light Torque Reversals
Slitters, Rod Mill, Hot Mill

Heavy Shock Loads or
Large Torque Reversals
Feed Rolls, Reversing Mills

(1) Use a minimum Service Factor of 1.25 when driving through a gearbox or using a direct on-line electric motor, and 1.5 when selecting a Cooling Tower Coupling.
(2) Consult Autogard when using a Reciprocating Engine of less than 4 cylinders.
(3) Service Factors provided are for reference only. Customer experience may dictate the selection of different Service Factors.

4

AUTOFLEX HIGH PERFORMANCE COUPLINGS

Autogard has been manufacturing Metal Membrane Couplings for over 30 years. The Autogard High Performance
Coupling is designed to provide a safe and reliable coupling connection for high speed turbo machinery. The
coupling has been designed using state of the art finite element analysis to ensure optimum performance.

Membrane Pack Hub Sleeve Shim Pack Spacer

Features and benefits High Performance Duties:

• Reduced moment configurations • Compressor Drives
• Never requires lubrication • Generator Sets
• Coated membranes for maximum life • Booster Pumps
• Compliance with API 671 • Main Oil Line Pumps
• Inherent fail-safe design • Test Dynamometers
• Unitised Membrane Pack assembly • Test Rigs
• Improved balance and reliability • Boiler Feed Pumps
• Reduce windage configurations • Turbine Drives
• Proven waisted link membrane design • Any critical application requiring a safe and reliable coupling
• Minimised weights and interias
• Torque measuring can be incorporated manufactured and balanced to the highest specifications
• Speeds up to 30,000rpm, from the standard range
Please refer to Autoflex High Performance Couplings catalogue for the
selection and full technical & dimensional details.
Autoflex HP Couplings are made under licence from FlexElementTM Texas Inc.

5

AUTOFLEX SERIES HVII

TYPE ED COUPLINGS (DOUBLE FLEX - SHORT SPACER)

The Autoflex ED & ES couplings have been designed for medium and The couplings are manufactured to tight tolerances ensuring a high
high duty applications. The coupling has been designed with the degree of dynamic balance. The couplings have been designed to meet
minimal number of parts and therefore provides an economical solution AGMA class 9 as manufactured and can be balanced to meet the AGMA
for applications requiring a spacer coupling. class 10 or API 610 8th Edition requirements.

The ES coupling is offered with four, six and eight link membranes. The The coupling consists of five parts, two hubs, two membrane packs and
four and six link couplings have been optimised for medium duty one spacer. The couplings use waisted link membranes which provide
application. The eight-link design offers higher torque capacities within a higher flexibility and ensures lower reaction forces on the driving and
given diameter. ED couplings have 6-link membranes as standard. driven equipment. The six and eight-link couplings also utilise overload
collars which protect them from high transient torques providing trouble
free operation.

CA

ØB
ØD
Max Bore

ED - 6 Link
Short Spacer Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1
Size - Links kW/1000 rpm
Cont. Peak Unbal. Bal. Weight Inertia
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2)

15 - 6 16 150 270 10,600 24,000 1.7 0.0018
35 - 6 37 350 620 8,900 19,000 3.6 0.0058
70 - 6 73 700 1,240 8,000 16,000 5.6 0.0134
150 - 6 157 1,500 2,680 6,500 12,000 14.0 0.0504
330 - 6 346 3,300 6,600 5,900 10,000 21.5 0.119
480 - 6 502 4,800 9,600 5,400 9,100 29.7 0.208

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.

Dimensional Details

Coupling 4 A B C D Misalignment 3
Size - Links
Maximum Min DBSE Max DBSE (mm) (mm) (mm) Axial Parallel
15 - 6 Bore (mm) 89 36.5 53.0 (mm) (mm)
35 - 6 (mm) (mm) 110 46.0 70.6
70 - 6 40 133 57.5 91.0
150 - 6 50 30.5 48.0 170 74.6 123 0.76 0.20
330 - 6 66 37.1 58.0 205 90.0 134 0.97 0.24
480 - 6 75 37.1 58.0 230 95.0 150 1.12 0.24
98 46.5 66.5 1.47 0.33
110 61.7 94.0 1.79 0.44
73.0 109 2.02 0.50

3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).
4) Maximum Bore assumes an interference fit with a rectangular key.

NOTE: The ED Coupling is used on 4 bearing systems, such as motor to pump / gearbox when short DBSEs are required.

6

AUTOFLEX SERIES HVII

TYPE ES COUPLINGS (DOUBLE FLEX - SPACER)

CA

ØB ES - 4 Link
ØD Spacer Coupling
Max Bore

ES - 6 Link
Spacer Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 Weight per m 1 Inertia per m
Size - Links kW/100 rpm of extra DBSE of extra DBSE
Cont. Peak Unbal. Bal. Weight Inertia
(Nm) (Nm) (rpm) (rpm) (kg) (kg/m) (kgm2) (kgm2/m)

11 - 4 12 110 220 10,500 21,000 1.72 5.60 0.0017 0.0029
19 - 4 20 190 380 9,200 19,000 3.05 7.25 0.0042 0.0046
15 - 6 16 150 270 10,200 24,000 1.98 4.61 0.0019 0.0015
35 - 6 37 350 620 8,500 19,000 4.22 6.56 0.0065 0.0045
70 - 6 73 700 1,240 7,700 16,000 6.64 13.4 0.015 0.016
130 - 6 136 1,300 2,600 7,100 14,000 9.57 11.5 0.028 0.015
150 - 6 157 1,500 2,680 6,300 12,000 15.6 27.9 0.055 0.063
220 - 6 230 2,200 4,400 6,300 12,000 15.6 17.8 0.063 0.037
330 - 6 346 3,300 6,600 5,700 10,000 23.9 23.2 0.057
480 - 6 502 4,800 9,600 5,300 9,100 33.1 31.0 0.13
700 - 6 733 7,000 14,000 5,000 8,200 44.4 30.7 0.22 0.10
880 - 6 921 8,800 17,600 4,700 7,400 58.7 30.9 0.38 0.16
1300 - 6 1,360 13,000 26,000 4,300 6,500 84.9 41.2 0.61 0.19
1.2 0.32

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.

Dimensional Details

Coupling 4 A5 B C D Misalignment 3
Size - Links Min DBSE (mm) (mm) (mm)
Maximum Axial Parallel
Bore (mm) (mm) (mm) (mm)

11 - 4 40 45 88.9 33.3 56.6 1.50 0.7

19 - 4 48 56 103.3 39.6 67 1.90 0.9

15 - 6 40 48 89 36.5 53 0.76 0.34

35 - 6 50 58 110 46.0 70.6 0.97 0.44

70 - 6 66 58 133 57.5 91 1.12 0.44

130 - 6 70 73 152 65.0 96 1.33 0.49

150 - 6 90 64 170 74.6 123 1.47 0.46

220 - 6 83 81 180 75.0 114 1.57 0.56

330 - 6 98 94 205 90.0 134 1.79 0.65

480 - 6 110 109 230 95.0 150 2.02 0.72

700 - 6 123 118 257 110 169 2.29 0.79

880 - 6 137 128 282 120 188 2.49 0.90

1300 - 6 160 143 325 130 218 2.89 0.95

3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack). 7
4) Maximum Bore assumes an interference fit with a rectangular key.
5) Most sizes stocked with 100mm and 140mm DBSEs.
6) Bolted tube spacers available.

Note: The ES Coupling is used on 4 bearing systems, such as motor to pump / gearbox where economical non API spacer couplings are required.

AUTOFLEX SERIES HVII

TYPE ES COUPLINGS (DOUBLE FLEX - SPACER)

CA

ØB
ØD
Max Bore

ES - 8 Link
Spacer Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 Weight per m 1 Inertia per m
Size - Links kW/1000 rpm of extra DBSE of extra DBSE
Cont. Peak Unbal. Bal. Weight Inertia
(Nm) (Nm) (rpm) (rpm) (kg) (kg/m) (kgm2) (kgm2/m)

340 - 8 353 3,400 6,800 6400 12800 14.3 10.4 0.054 0.0228
510 - 8 537 5,100 10,200 5800 11300 22.0 13.4 0.108 0.0391
740 - 8 778 7,400 14,800 5400 10000 31.3 16.8 0.196 0.0643
1040 - 8 1,086 10,400 20,800 5000 9000 43.4 21.8 0.334 0.100
1410 - 8 1,481 14,100 28,200 4700 8200 57.7 26.2 0.543 0.150
1900 - 8 1,989 19,000 38,000 4400 7500 75.4 32.7 0.851 0.223
2500 - 8 2,618 25,000 50,000 4100 7200 98.5 43.2 1.24 0.303
2870 - 8 3,001 28,700 57,400 3900 6400 121 40.8 1.86 0.382
3590 - 8 3,757 35,900 71,800 3700 6000 150 48.9 2.64 0.527
4420 - 8 4,631 44,200 88,400 3600 5600 186 55.0 3.72 0.679
7240 - 8 7,585 72,400 144,800 3200 4700 304 73.9 8.45
11660 - 8 12,205 116,600 233,200 2900 4000 468 104.9 17.7 1.36
20000 - 8 20,944 200,000 400,000 2500 3400 815 150.7 43.3 2.58
5.13

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.

Dimensional Details

Coupling 4 A B C D Misalignment 3
Size - Links (mm) (mm) (mm)
Maximum Min DBSE Axial Parallel
Bore (mm) (mm) (mm) (mm)

340 - 8 81 78 171 65 113 3.4 0.34

510 - 8 91 89 195 80 128 3.9 0.39

740 - 8 104 100 219 90 145 4.4 0.43

1040 - 8 115 112 243 100 161 4.9 0.49

1410 - 8 126 121 268 105 177 5.4 0.53

1900 - 8 139 130 293 115 194 5.9 0.57

2500 - 8 144 146 310 130 201 6.1 0.65

2870 - 8 164 146 344 145 230 6.9 0.64

3590 - 8 174 161 368 155 243 7.4 0.71

4420 - 8 188 169 393 175 263 7.9 0.74

7240 - 8 223 193 464 215 312 9.4 0.85

11660 - 8 258 226 538 235 361 11.0 1.0

20000 - 8 305 270 640 300 427 13.1 1.2

3) Maximum Parallel Offset is based on a minimum DBSE (1/3 Deg. Angular misalignment per membrane pack).

8 4) Maximum Bore assumes an interference fit with a rectangular key.

NOTE: The ES Coupling is used on 4 bearing systems, such as motor to pump / gearbox where economical non API spacer couplings are required

AUTOFLEX SERIES HVII

TYPE CD & ECS COUPLINGS (DOUBLE FLEX - SPACER)

The Autoflex CD & ECS is a drop out spacer style coupling designed to The transmission unit is spigoted between the shaft hubs providing
meet API 610 8th Edition for industrial pump couplings. The coupling excellent balance characteristics. The coupling has been designed to
consists of three parts, two shaft hubs and a factory pre-assembled provide an AGMA class 9 balance as manufactured. The coupling can be
transmission unit. balanced up to an AGMA 11 for high speed, sensitive applications. The fact
that the coupling does not require lubrication ensures that the balance will
Unlike conventional membrane couplings, the anti-fly guard is designed to not degrade over the life of the driving and driven equipment.
extend over the top of the membrane pack. This features provides several
benefits: The CD has been designed for very short DBSE applications. The ECS four
• Reduces the windage produced by the membrane pack. and six link couplings are used in medium duty application providing a
• Acts as a coupling guard providing additional safety. good combination of torque carrying and misalignment capacity.
• Increases the retaining strength over conventional couplings.
• Eliminates the need for balancing tools (gag sleeves and bolts) and The ECS eight-link coupling is used for high power applications.

therefore increases the accuracy of the dynamic balance of the coupling.

C1 A C2

Standard Hub Large Hub

ØB
ØD
Max. Bore
Max. Bore

Size 150 and above
have anti-fly guard rings

CD - 6 Link
Short Spacer Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Misalignment 3
Size - Links kW/1000 rpm
Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm) (mm)

15 - 6 16 150 270 9,800 24,000 2.33 0.00259 0.76 0.20
0.24
35 - 6 37 350 620 8,300 19,000 4.68 0.00810 0.97 0.24
0.33
70 - 6 73 700 1,240 7,600 16,000 7.18 0.0186 1.12 0.44
0.50
150 - 6 157 1,500 2,680 6,200 12,000 16.8 0.0731 1.47

330 - 6 346 3,300 6,600 5,300 10,000 34.4 0.219 1.79

480 - 6 502 4,800 9,600 4,900 9,100 47.3 0.373 2.02

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling Maximum Bore 4 A (DBSE) B C1 C2 D
Size - Links (mm) (mm) (mm) (mm)
Std. Hub Large Hub Min Max
(mm) (mm) (mm) (mm)

15 - 6 45 60 48.5 80.0 89 36.5 36.5 60

35 - 6 55 74 59.9 100 110 46.0 46.0 75

70 - 6 75 90 59.9 100 133 58.7 58.7 100

150 - 6 95 112 90.7 110 170 74.5 74.5 130

330 - 6 120 140 128 152 205 90.0 90.0 163

480 - 6 130 - 143 169 230 95.0 - 181

4) Maximum Bore assumes an interference fit with a rectangular key. 9
NOTE: The CD coupling is used on 4 bearing systems such as motor to pump / gearbox when short DBSEs and Drop Out Transmission Units are required

AUTOFLEX SERIES HVII C3
Extended Hub
TYPE ECS COUPLINGS (DOUBLE FLEX - SPACER)

C1 A C2

Large Hub

Standard Hub
ØB
ØD
Max. Bore
Max. Bore

ECS - 6 Link
Spacer Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 Weight per m 1 Inertia per m Misalignment 3
of extra DBSE of extra DBSE
Size - Links kW/100 rpm Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kg) (kgm2) (kgm2/m) (mm) (mm)

11 - 4 12 110 220 8,900 21,000 3.48 5.60 0.00371 0.00287 1.50 0.62
1.90 0.72
19 - 4 20 190 380 8,000 19,000 5.63 7.25 0.00815 0.00460 0.76 0.34
0.97 0.44
15 - 6 16 150 270 9,100 24,000 3.25 4.61 0.00359 0.00153 1.12 0.44
1.33 0.49
35 - 6 37 350 620 7,800 19,000 6.33 6.56 0.0110 0.00449 1.47 0.46
1.57 0.56
70 - 6 73 700 1,240 7,100 16,000 9.58 13.4 0.0249 0.0159 1.79 0.65
2.02 0.72
130 - 6 136 1,300 2,600 6,400 14,000 14.6 11.5 0.0479 0.0154 2.29 0.79
2.49 0.90
150 - 6 157 1,500 2,680 6,100 12,000 18.3 27.9 0.0770 0.0632 2.89 0.95

220 - 6 230 2,200 4,400 5,700 12,000 24.5 17.8 0.111 0.0367

330 - 6 346 3,300 6,600 5,200 10,000 36.6 23.2 0.226 0.0568

480 - 6 502 4,800 9,600 4,800 9,100 50.7 31.0 0.388 0.0996

700 - 6 733 7,000 14,000 4,400 8,200 71.2 30.7 0.684 0.156

880 - 6 921 8,800 17,600 4,200 7,400 93.9 30.9 1.10 0.191

1300 - 6 1,360 13,000 26,000 3,900 6,500 131 41.2 2.00 0.315

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored couplings with standard hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling Maximum Bore 4 A B C1 C2 C3 D Stock DBSE ("A") Dimension
Size - Links (mm) (mm) (mm) (mm) (mm)
Std. & Ext. Hub Large Hub Min DBSE (mm)
100 120 140 180 250
(mm) (mm) (mm)

11 - 4 42 60 70 91.2 33.3 41.1 42.9 58.7
19 - 4 51
15 - 6 45 75 85 106 39.6 46.0 52.3 71.4
35 - 6 55
70 - 6 75 60 80 89.0 36.5 36.5 50.8 60
130 - 6 80
150 - 6 95 74 100 110 46.0 46.0 63.5 75
220 - 6 90
330 - 6 120 95 100 133 58.7 58.7 76.2 100
480 - 6 130
700 - 6 140 105 114 152 65.0 65.0 82.6 111
880 - 6 155
1300 - 6 175 112 108 170 74.5 74.5 92.2 130

125 131 180 75.0 75.0 95.3 131

146 152 205 90.0 90.0 111 163

- 169 230 95.0 95.0 127 181

- 185 257 110 110 137 206

- 210 282 120 120 152 223

- 223 325 130 130 159 248

4) Maximum Bore assumes an interference fit with a rectangular key.

10 5) Bolted tube spacers available.

NOTE: The ECS Coupling is used on 4 bearing systems, such as API 610 motor to pump applications and where Drop Out Transmission Units are required.

AUTOFLEX SERIES HVII

TYPE ECS COUPLINGS (DOUBLE FLEX - SPACER)

C1 A C2

Standard Hub Large Hub
Ø B1
Ø D1
Max. Bore
Max. Bore
Ø D2
Ø B2

ECS - 8 Link
Spacer Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 Weight per m 1 Inertia per m Misalignment 3
of extra DBSE of extra DBSE Axial Parallel
Size - Links kW/100 rpm Cont. Peak Unbal. Bal. Weight Inertia (mm) (mm)
(Nm) (Nm) (rpm) (rpm) (kg) (kg/m) (kgm2) (kgm2/m)
3.4 0.34
340 - 8 353 3,400 6,800 6,100 12,800 18.5 10.4 0.0775 0.0228 3.9 0.39
510 - 8 537 5,100 10,200 5,500 11,300 28.1 4.4 0.43
740 - 8 778 7,400 14,800 5,100 10,000 41.1 13.4 0.153 0.0391 4.9 0.49
1040 - 8 1,086 10,400 20,800 4,600 9,000 59.8 5.4 0.53
1410 - 8 1,481 14,100 28,200 4,300 8,200 81.3 16.8 0.286 0.0643 5.9 0.57
1900 - 8 1,989 19,000 38,000 4,100 7,500 102 6.1 0.65
2500 - 8 2,618 25,000 50,000 3,800 7,200 142 21.8 0.521 0.100 6.9 0.64
2870 - 8 3,001 28,700 57,400 3,700 6,400 165 7.4 0.71
3590 - 8 3,757 35,900 71,800 3,500 6,000 199 26.2 0.868 0.150 7.9 0.74
4420 - 8 4,631 44,200 88,400 3,400 5,600 242 9.4 0.85
7240 - 8 7,585 72,400 144,800 3,000 4,700 403 32.7 1.28 0.223 11.0 1.0
11660 - 8 12,205 116,600 233,200 2,700 4,000 652 13.1 1.2
20000 - 8 20,944 200,000 400,000 2,400 3,400 1,095 43.2 1.97 0.303

40.8 2.88 0.382

48.9 3.92 0.527

55.0 5.47 0.679

73.9 12.9 1.36

105 28.5 2.58

151 67.2 5.13

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/3 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling Maximum Bore 4 A B1 B2 C1 C2 D1 D2
Size - Links Min DBSE (mm) (mm) Std. Hub Large Hub Std. Hub Large Hub
Std. Hub Large Hub
(mm) (mm) (mm) (mm) (mm) (mm) (mm)

340 - 8 94 124 124 171 219 74.5 98.5 132 173

510 - 8 107 134 142 195 243 85.7 110 150 187

740 - 8 124 151 159 219 268 98.5 123 173 211

1040 - 8 134 169 180 243 310 110 165 187 236

1410 - 8 151 194 196 268 344 123 158 211 272

1900 - 8 159 203 212 293 368 130 163 222 284

2500 - 8 169 - 246 310 - 165 - 236 -

2870 - 8 194 - 238 344 - 158 - 272 -

3590 - 8 203 - 262 368 - 163 - 284 -

4420 - 8 220 - 274 393 - 178 - 308 -

7240 - 8 255 - 317 464 - 210 - 357 -

11660 - 8 307 - 375 538 - 250 - 430 -

20000 - 8 368 - 448 640 - 297 - 515 -

4) Maximum Bore assumes an interference fit with a rectangular key. 11

NOTE: The ECS Coupling is used on 4 bearing systems, such as API 610 motor to pump applications and where high power and Drop Out Transmission
Units are required

AUTOFLEX SERIES HRII & HFTII

The advanced features of the Autoflex Membrane couplings are now
available as a “Drop-In” upgrade for your existing Thomas Series 71TM
or Metastream T-SeriesTM Couplings.

The “Drop-In” Advantage
No need for expensive hub removal or machining as you keep your
existing hubs.
Locates on existing hub spigot for accurate run-out and balance.
Retains original shaft separation.

The Autoflex Advantage
Bolted spacer option offers quick turnaround for non standard DBSE’s
Unique gagging feature for jig-free dynamic balancing of
transmission unit & hub.
Anti-fly guard rings for increased safety
ATEX Approval - See page 3 for details

SERIES HRII

“DROP-IN” FOR THOMAS™ SERIES 71 COUPLINGS

C1 'A' Minimum DBSE C2 C3

Standard Extended Large
Hub Hub Hub
ØB
ØD
Max Bore
Max Bore

Technical Details ECS HRII 4 & 6 - Link
"Drop-In" for Thomas™ Series 71

Coupling Thomas™ Rating Torque Rating Maximum Speed 2 1 Weight per m 1 Inertia per m Misalignment 3
of extra DBSE of extra DBSE Axial Parallel
Size - Links Series 71 kW/100 rpm Cont. Peak Unbal. Bal. Weight Inertia (mm) (mm)
(Nm) (Nm) (rpm) (rpm) (kg) (kg/m) (kgm2) (kgm2/m)
1.50 0.62
11 - 4 150 12 110 220 8,900 21,000 3.48 5.60 0.00371 0.00287 1.90 0.72
19 - 4 175 20 190 380 8,000 19,000 5.63 7.25 0.00815 0.00460 0.97 0.44
35 - 6 225 37 350 620 6,300 17,000 8.37 6.56 0.0170 0.00449 1.33 0.49
130 - 6 300 136 1,300 2,600 5,500 14,000 15.0 11.5 0.0476 0.0154 1.57 0.56
200 - 6 350 230 2,200 4,400 4,900 12,000 24.4 17.8 0.107 0.0367 1.57 0.56
220 - 6 375 230 2,200 4,400 4,700 11,000 29.6 17.8 0.148 0.0367

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling Thomas™ Maximum Bore 4 A B C1 C2 C3 D
Size - Links Series 71 (mm) (mm) (mm)
Std. & Ext. Large Hub Min DBSE (mm) (mm)

Hub (mm) (mm) (mm) 41.1 58.7
46.0 71.4
11 - 4 150 42 60 70 91.2 33.3 42.9 52.3 84.8
69.9 113
19 - 4 175 51 75 85 106 39.6 52.3 76.2 133
82.6 144
35 - 6 225 61 90 100 126 50.8 63.5

130 - 6 300 81 108 114 152 66.5 82.6

200 - 6 350 95 122 131 180 79.2 95.3

220 - 6 375 103 138 131 194 82.6 102

4) Maximum Bore assumes an interference fit with a rectangular key.
5) Thomas Series 71 is a registered Trade Mark of Rexnord Industries Inc.
6) Metastream T-Series is a registered Trade Mark of John Crane Ltd.

12

NOTE: When ordering please advise if a Transmission Unit or coupling complete with hubs is required.

AUTOFLEX SERIES HFTII

“DROP-IN” FOR METASTREAM ™ “T” SERIES COUPLINGS

C1 A C2

Large Hub

Standard Hub

ØB
ØD
Max. Bore
Max. Bore

ECS HFTII - 6 Link
"Drop-In" for Metastream™ "T" Series Coupling

Technical Details (Socket head cap screws supplied with every Transmission Unit)

Coupling Metastream™ Rating Torque Rating Maximum Speed 2 1 Weight per m 1 Inertia per m Misalignment 3
Size - Links “T” series kW/100 rpm of extra DBSE of extra DBSE
Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kg/m) (kgm2) (kgm2/m) (mm) (mm)

15 - 6 TSKS 0013 16 150 270 9,100 24,000 3.43 4.61 0.0036 0.00153 0.76 0.34
35 - 6 TSKS 0033 37 350 620 7,800 19,000 6.47 6.56 0.0109 0.00449 0.97 0.44
70 - 6 TSKS 0075 73 700 1,240 7,100 16,000 9.32 13.4 0.0234 0.0159 1.12 0.44
130 - 6 TSKS 0135 136 1,300 2,600 6,400 14,000 14.6 11.5 0.0479 0.0154 1.33 0.49
220 - 6 TSKS 0230 230 2,200 4,400 5,700 12,000 24.5 17.8 0.111 0.0367 1.57 0.56
330 - 6 TSKS 0350 346 3,300 6,600 5,200 10,000 36.6 23.2 0.226 0.0568 1.79 0.65
480 - 6 TSKS 0500 502 4,800 9,600 4,800 9,100 50.7 31.0 0.388 0.0996 2.02 0.72
700 - 6 TSKS 0740 733 7,000 14,000 4,400 8,200 71.2 30.7 0.684 2.29 0.79
880 - 6 TSKS 0930 921 8,800 17,600 4,200 7,400 93.9 30.9 1.10 0.156 2.49 0.90
1300 - 6 TSKS 1400 1,360 13,000 26,000 3,900 6,500 131 41.2 2.00 0.191 2.89 0.95
0.315

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling Metastream™ Maximum Bore 4 A B C1 C2 D
Size - Links “T’ Series (mm) (mm) (mm) (mm)
Std. Hub Large Hub Min DBSE
(mm)
(mm) (mm)

15 - 6 TSKS 0013 36 51 80 89 40 40 54
35 - 6 TSKS 0033 46
70 - 6 TSKS 0075 65 70 100 110 45 45 69
130 - 6 TSKS 0135 80
220 - 6 TSKS 0230 90 90 100 133 55 55 90
330 - 6 TSKS 0350 120
480 - 6 TSKS 0500 130 105 114 152 62 62 111
700 - 6 TSKS 0740 140
880 - 6 TSKS 0930 155 125 131 180 70 70 131
1300 - 6 TSKS 1400 175
140 152 205 90 90 163

- 169 230 95 - 181

- 185 257 107 - 206

- 210 282 115 - 223

- 223 325 130 - 248

4) Maximum Bore assumes an interference fit with a rectangular key.
5) Metastream T series is a registered Trade Mark of John Crane Ltd.

NOTE: When ordering please advise if a Transmission Unit or coupling complete with hubs is required. 13
"Drop-in" for Metastream™ TSCS (Imperial Version) can be supplied on request – consult Autogard.

AUTOFLEX SERIES HVII

TYPE CCA COUPLINGS (CLOSE COUPLED - AXIALLY SPLIT)

The Autoflex CCA is offered in both a six and eight link membrane The coupling can be installed with hubs reversed as shown offering the
designs. The six link is suitable for light to medium duty applications, maximum flexibility in DBSE selection. The coupling has been designed
allows for very short DBSE’s and is often used when replacing the to allow the user to replace membrane packs without moving the
Thomas DBZ™ Coupling. driving or the driven equipment. Simply remove the axial split spacer
and remove the membrane pack from between the hub faces.
The CCA eight-link coupling has been designed for heavy-duty
applications and is often offered when replacing gear or grid The CCA has been designed to meet AGMA 8-balance classification.
style couplings. Dynamic Balancing is offered which will increase the balance to an
AGMA class 9.
The Autoflex CCA is comprised of two coupling hubs, two guard rings,
two membrane packs and one axial split spacer. The axial split spacer is Refer to the Autoflex CCR for higher speed requirements.
spigoted to the guard ring to provide a good balance characteristic.

CCA - 6 LINK (MEDIUM DUTY)

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Misalignment 3
Size - Links kW/1000 rpm
Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm) (mm)

15 - 6 16 150 270 6,300 10,800 1.98 0.00192 0.76 0.67
35 - 6 37 0.83
70 - 6 73 350 620 5,300 9,000 3.95 0.00627 0.97 0.93
130 - 6 136 1.20
150 - 6 157 700 1,240 4,800 7,800 5.95 0.0135 1.12 1.27
220 - 6 230 1.36
330 - 6 346 1,300 2,600 4,100 7,000 11.1 0.0332 1.33 1.54
480 - 6 502 1.81
700 - 6 733 1,500 2,680 3,900 6,500 12.8 0.0455 1.47 1.99
880 - 6 921 2.17
1300 - 6 1,360 2,200 4,400 3,600 6,200 17.7 0.0731 1.57 2.36

3,300 6,600 3,300 5,500 25.6 0.142 1.79

4,800 9,600 3,000 5,100 38.0 0.261 2.02

7,000 14,000 2,700 4,700 52.8 0.458 2.29

8,800 17,600 2,600 4,300 68.5 0.714 2.49

13,000 26,000 2,400 3,900 97.8 1.36 2.89

1) Weights and Inertias are calcualted using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling 4 A1 A2 B C D E1 E2
Size - Links Min DBSE Rev Hub
Maximum (mm) (mm) (mm) (mm) (mm)
Bore (mm) (mm) (mm)
85 37 44.6 77 -
15 - 6 32 3 - 108 46 59.9 95 -
35 - 6 43 3 - 128 52 74.9 107 -
70 - 6 54 3 - 148 66 79.1 153 199
130 - 6 57 5 59 163 70 94.0 156 211
150 - 6 67 5 65 174 75 96.6 174 226
220 - 6 69 6 67 200 85 118.4 196 255
330 - 6 85 6 75 223 100 131.8 231 301
480 - 6 94 7 89 250 110 149.4 254 331
700 - 6 107 8 98 273 120 166.4 277 361
880 - 6 119 9 107 314 130 193.5 300 391
1300 - 6 138 10 116

4) Maximum Bore assumes an interference fit with a rectangular key.

5) Thomas DBZ™ is a registered Trade Mark of Rexnord Industries Inc.

14

AUTOFLEX SERIES HVII

TYPE CCA COUPLINGS (CLOSE COUPLED - AXIALLY SPLIT)

E1 E2 C
A1 C A2

CC

ØB
Max Bore

ØB
Max Bore

ØD

CCA 6 & 8 - Link Couplings

CCA - 8 LINK (HEAVY DUTY)

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Misalignment 3

Size - Links kW/1000 rpm Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm) (mm)

1410 - 8 1,481 14,100 28,200 2,700 4,500 58.3 0.535 5.4 1.4
1900 - 8 1,989 19,000 38,000 2,500 4,200 75.5 0.823 5.9 1.5
2500 - 8 2,618 25,000 50,000 2,400 4,100 87.5 1.03 6.1 1.6
2870 - 8 3,001 28,700 57,400 2,300 3,700 116 1.74 6.9 1.7
3590 - 8 3,757 35,900 71,800 2,100 3,600 144 2.47 7.4 1.8
4420 - 8 4,631 44,200 88,400 2,000 3,400 173 3.38 7.9 1.9
7240 - 8 7,585 72,400 144,800 1,800 2,900 287 8.04 9.4 2.2
11660 - 8 12,205 116,600 233,200 1,600 2,600 458 17.3 11.0 2.6
20000 - 8 20,944 200,000 400,000 1,400 2,300 785 42.2 13.1 3.1

1) Weight and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel offset is based on a minimum DBSE (1/3 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling 4 A1 A2 B C D E1 E2
Size - Links Min DBSE Rev Hub
Maximum (mm) (mm) (mm) (mm) (mm)
Bore (mm) (mm) (mm)
258 115 155.3 267 349
1410 - 8 111 11 106 281 125 170.0 290 379
292 132 174.4 304 397
1900 - 8 121 12 115 330 139 199.1 321 420
353 151 213.1 350 457
2500 - 8 125 12 119 377 160 228.0 369 483
449 184 272.7 426 556
2870 - 8 142 13 127 522 217 317.7 501 653
622 259 379.4 597 778
3590 - 8 152 14 138

4420 - 8 163 15 146

7240 - 8 195 16 167

11660 - 8 227 17 194

20000 - 8 271 19 230

4) Maximum Bore assumes an interference fit with a rectangular key. 15

AUTOFLEX SERIES HVII

TYPE CCR COUPLINGS (CLOSE COUPLED - RADIALLY SPLIT)

The Autoflex CCR is offered in both a six and eight link membrane The CCR has been designed to meet AGMA class 9 as manufactured and
designs. The six-link design is suitable for medium duty high-speed can be balanced to meet the AGMA class 11 or API 610 8th edition
applications. The CCR eight-link coupling has been designed for heavy- requirements.
duty high-speed applications with very short DBSE’s and is often offered
when replacing high performance gear couplings. This allows for easy The coupling can be installed with hubs reversed, offering the maximum
conversion between lubricated couplings to non-lubricated, zero flexibility in DBSE selection. The coupling has been designed with
maintenance membrane style couplings. waisted link membranes making one of the most flexible couplings
available today. In addition, the coupling comes with overload collars,
The Autoflex CCR is comprised of two coupling hubs, two guard rings which protects the coupling from high peak loads.
and two membrane packs. The radial split guard rings are spigoted
ensuring the highest level of balance. Refer to the Autoflex CCA to allow replacement of membranes without
moving the driving or driven equipment.

CCR - 6 LINK (MEDIUM DUTY)

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Misalignment 3
Size - Links kW/1000 rpm
Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm) (mm)

15 - 6 16 150 270 9,500 18,000 2.68 0.0040 0.76 0.41
35 - 6 37 350 620 8,300 15,000 4.72 0.0098 0.97 0.42
70 - 6 73 700 1,240 7,400 13,000 7.79 0.0218 1.12 0.51
130 - 6 136 1,300 2,600 6,900 11,000 10.6 0.0407 1.33 0.53
220 - 6 230 2,200 4,400 6,200 9,600 16.8 0.0849 1.57 0.63
330 - 6 346 3,300 6,600 5,600 8,300 25.4 0.170 1.79 0.73
480 - 6 502 4,800 9,600 5,200 7,300 36.1 0.303 2.02 0.80
700 - 6 733 7,000 14,000 4,900 6,800 47.5 0.493 2.29 0.92
880 - 6 921 8,800 17,600 4,500 6,000 65.8 0.851 2.49 1.03
1300 - 6 1,360 13,000 26,000 4,100 5,400 97.1 2.89 1.29
1.55

1) Weights and Inertias are calcualted using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/2 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling 4 A1 DBSE A3 B C D E1 E2 E3
Size - Links Min 2 Hubs Rev
Maximum A2 (mm) (mm) (mm) (mm) (mm) (mm)
Bore (mm) 1 Hub Rev (mm)
(mm) 118 35 40 73 98.5 124.0
(mm) 140 40 59 83 110.3 137.6
163 55 84 113 135.2 157.5
15 - 6 28 3 28.5 54.0 190 60 83 123 144.6 166.2
35 - 6 40 3 30.3 57.6 218 70 100 143 168.6 194.1
70 - 6 55 3 25.2 47.5 254 80 117 163 193.0 223.0
130 - 6 60 3 24.6 46.2 286 90 131 183 216.9 250.9
220 - 6 70 3 28.6 54.1 310 100 148 203 241.9 280.7
330 - 6 80 3 33.0 63.0 350 110 165 223 269.1 315.2
480 - 6 90 3 36.9 70.9 392 130 193 263 322.8 382.5
700 - 6 105 3 41.9 80.7
880 - 6 115 3 49.1 95.2
1300 - 6 130 3 62.8 122.5

4) Maximum Bore assumes an interference fit with a rectangular key.

16

AUTOFLEX SERIES HVII

TYPE CCR COUPLINGS (CLOSE COUPLED - RADIALLY SPLIT)

E1 E2 E3
C A1 A2 A3

ØB
ØD
Max Bore

CCR 6 & 8 - Link Couplings

CCR - 8 LINK (HEAVY DUTY)

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Misalignment 3

Size - Links kW/1000 rpm Cont. Peak Unbal. Bal. Weight Inertia Axial Parallel
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm) (mm)

340 - 8 353 3,400 6,800 6200 9700 16.8 0.0784 3.4 0.44
3.9 0.50
510 - 8 537 5,100 10,200 5700 8600 25.0 0.149 4.4 0.56
4.9 0.61
740 - 8 778 7,400 14,800 5200 7800 35.0 0.256 5.4 0.68
5.9 0.74
1040 - 8 1,086 10,400 20,800 4900 7100 47.8 0.428 6.1 0.70
6.9 0.95
1410 - 8 1,481 14,100 28,200 4500 6400 64.9 0.711 7.4 1.00
7.9 1.09
1900 - 8 1,989 19,000 38,000 4300 5900 84.9 1.11 9.4 1.30
11.0 1.54
2500 - 8 2,618 25,000 50,000 4000 5600 107 1.56 13.1 1.76

2870 - 8 3,001 28,700 57,400 3900 5100 132 2.33

3590 - 8 3,757 35,900 71,800 3700 4800 165 3.34

4420 - 8 4,631 44,200 88,400 3500 4500 200 4.61

7240 - 8 7,585 72,400 144,800 3100 3800 321 10.3

11660 - 8 12,205 116,600 233,200 2800 3300 506 21.8

20000 - 8 20,944 200,000 400,000 2500 2800 841 50.7

1) Weights and Inertias are calcualted using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.
3) Maximum Parallel Offset is based on a minimum DBSE (1/3 Deg. Angular misalignment per membrane pack).

Dimensional Details

Coupling 4 A1 DBSE A3 B C D E1 E2 E3
Size - Links Min 2 Hubs Rev
Maximum A2 (mm) (mm) (mm) (mm) (mm) (mm)
Bore (mm) 1 Hub Rev (mm)
(mm) 217 70 98 144 171 198
(mm) 245 80 113 164 194 224
269 90 127 185 219 253
340 - 8 70 4 31 58 297 100 141 205 241 277
330 110 156 226 266 306
510 - 8 81 4 34 64 355 120 171 246 290 334
376 125 175 256 297 338
740 - 8 91 5 39 73 410 145 201 297 357 417
442 155 215 318 380 442
1040 - 8 101 5 41 77 467 165 229 338 408 478
550 195 274 400 482 564
1410 - 8 111 6 46 86 642 230 319 472 568 664
744 270 381 554 660 766
1900 - 8 122 6 50 94

2500 - 8 125 6 47 88

2870 - 8 144 7 67 127

3590 - 8 154 8 70 132

4420 - 8 164 8 78 148

7240 - 8 196 10 92 174

11660 - 8 228 12 108 204

20000 - 8 272 14 120 226

4) Maximum Bore assumes an interference fit with a rectangular key. 17

AUTOFLEX SERIES HVII

TYPE EB COUPLINGS (SINGLE FLEX)

The Autoflex EB coupling has been designed for medium and high duty The coupling consists of three parts, two hubs and a membrane pack.
applications. The coupling has been specifically designed for three bearing The EB couplings use waisted link membranes which provide higher
systems, which only require angular and axial misalignment capacity. flexibility and ensure lower reaction forces on the driving and driven
equipment.
The coupling is offered with four, six and eight link membranes. The four
and six link couplings have been optimised for medium duty application. The six and eight-link coupling also utilise overload collars to protect the
The eight-link design offers higher torque capacities within a given diameter. coupling from high transient torques.

CA CA

ØB
ØD
Max Bore

ØB
ØD

EB - 4 Link Coupling EB - 6 Link Coupling

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Max. Axial
Misalignment
Size - Links kW/1000 rpm Cont. Peak Unbal. Bal. Weight Inertia
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm)

11 - 4 12 110 220 11,700 21,000 1.07 0.000809 0.75
0.95
19 - 4 20 190 380 10,400 19,000 1.83 0.00196 0.38
0.49
15 - 6 16 150 270 11,600 12,800 1.12 0.00111 0.56
0.67
35 - 6 37 350 620 9,600 11,300 2.57 0.00383 0.74
0.79
70 - 6 73 700 1,240 8,500 10,000 4.27 0.00936 0.90
1.0
130 - 6 136 1,300 2,600 7,900 9,000 6.00 0.0165 1.1
1.2
150 - 6 157 1,500 2,680 6,800 8,200 11.2 0.0367 1.4

220 - 6 230 2,200 4,400 7,000 7,500 9.79 0.0378

330 - 6 346 3,300 6,600 6,400 7,200 15.0 0.0758

480 - 6 502 4,800 9,600 5,900 6,400 20.6 0.132

700 - 6 733 7,000 14,000 5,500 6,000 29.3 0.230

880 - 6 921 8,800 17,600 5,100 5,600 39.0 0.376

1300 - 6 1,360 13,000 26,000 4,700 4,700 55.7 0.718

1) Weights and Inertias are calcualted using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.

Dimensional Details

Coupling Maximum 3 A B C D
Size - Links Bore DBSE (mm) (mm) (mm)
(mm) (mm)

11 - 4 40 6.4 89 33.3 56.6

19 - 4 48 8.1 103 39.6 67

15 - 6 40 7.3 89 36.5 53

35 - 6 50 9.4 110 46.0 70.6

70 - 6 66 9.4 133 57.5 91

130 - 6 70 9.3 152 65.0 96

150 - 6 90 8.8 170 74.6 123

220 - 6 83 9.7 180 75.0 114

330 - 6 98 11.2 205 90.0 134

480 - 6 110 15.0 230 95.0 150

700 - 6 123 15.7 257 110 169

880 - 6 137 16.5 282 120 188

1300 - 6 160 19.2 325 130 218

18 3) Maximum Bore assumes an interference fit with a rectangular key.

NOTE: The EB Coupling is used on 3 bearing systems, and only accepts angular and axial misalignment.

Do not use where offset misalignment occurs.

AUTOFLEX SERIES HVII

TYPE EB COUPLINGS (SINGLE FLEX)

CA

ØB
ØD
Max Bore

EB - 8 Link Couplings

Technical Details

Coupling Rating Torque Rating Maximum Speed 2 1 1 Max. Axial
Misalignment
Size - Links kW/1000 rpm Cont. Peak Unbal. Bal. Weight Inertia
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm)

340 - 8 353 3,400 6,800 7,200 12,800 9.09 0.0325 1.7
2.0
510 - 8 537 5,100 10,200 6,400 11,300 14.3 0.0650 2.2
2.5
740 - 8 778 7,400 14,800 5,900 10,000 20.3 0.118 2.7
3.0
1040 - 8 1,086 10,400 20,800 5,500 9,000 28.0 0.201 3.0
3.5
1410 - 8 1,481 14,100 28,200 5,200 8,200 36.9 0.324 3.7
4.0
1900 - 8 1,989 19,000 38,000 4,900 7,500 48.1 0.506 4.7
5.5
2500 - 8 2,618 25,000 50,000 4,600 7,200 61.2 0.721 6.5

2870 - 8 3,001 28,700 57,400 4,300 6,400 79.3 1.13

3590 - 8 3,757 35,900 71,800 4,100 6,000 97.2 1.59

4420 - 8 4,631 44,200 88,400 5,600 5,600 123 2.27

7240 - 8 7,585 72,400 144,800 4,700 4,700 206 5.26

11660 - 8 12,205 116,600 233,200 4,000 4,000 311 10.9

20000 - 8 20,944 200,000 400,000 3,400 3,400 546 26.6

1) Weights and Inertias are calcualted using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs.

Dimensional Details

Coupling 3 A B C D
Size - Links (mm) (mm) (mm)
Maximum DBSE
Bore (mm) (mm)

340 - 8 81 13.0 171 65 113

510 - 8 91 14.4 195 80 128

740 - 8 104 16.3 219 90 145

1040 - 8 115 17.7 243 100 161

1410 - 8 126 19.4 268 105 177

1900 - 8 139 21.1 293 115 194

2500 - 8 144 20.9 310 130 201

2870 - 8 164 23.6 344 145 230

3590 - 8 174 25.3 368 155 243

4420 - 8 188 27.0 393 175 263

7240 - 8 223 30.2 464 215 312

11660 - 8 258 33.7 538 235 361

20000 - 8 305 38.8 640 300 427

3) Maximum Bore assumes an interference fit with a rectangular key. 19
NOTE: The EB Coupling is used on 3 bearing systems, and only accepts angular and axial misalignment.

Do not use where offset misalignment occurs.

AUTOFLEX SERIES HVII

TYPE CB COUPLINGS (SINGLE FLEX)

The Autoflex CB coupling has been designed for medium and high duty The coupling consists of three parts, two hubs and a membrane cartridge
applications. The coupling has been designed for three bearing systems pack. The CB couplings use waisted link membranes, which provide higher
which only require angular and axial misalignment capacity. flexibility and ensures lower reaction forces on the driving and driven
equipment.
The coupling is offered with a six link membrane. The membrane cartridge pack allows for replacement of membranes
The couplings have been optimised for medium duty applications without moving the driving or driven equipment.
The coupling also utilises overload collars to protect the coupling from
high transient torques.

C1 A C2

Large Hub

Standard Hub

ØB
ØD
Max. Bore
Max. Bore

CB - 6 Link Coupling Size 150 and above
have anti-fly guard rings

Technical Details

Coupling Rating Torque Rating 1 Maximum Speed 2 1 1 Max. Axial
Size - Links kW/1000 rpm Misalignment
Cont. Peak Unbal. Bal. Weight Inertia
(Nm) (Nm) (rpm) (rpm) (kg) (kgm2) (mm)

15 - 6 16 150 270 10,300 24,000 1.85 0.00200 0.38
0.49
35 - 6 37 350 620 8,700 19,000 3.82 0.00641 0.56
0.74
70 - 6 73 700 1,240 7,900 16,000 5.97 0.0150 0.90
1.0
150 - 6 157 1,500 2,680 6,500 12,000 13.8 0.0576

330 - 6 346 3,300 6,600 5,500 10,000 27.6 0.172

480 - 6 502 4,800 9,600 5,100 9,100 37.9 0.291

1) Weights and Inertias are calculated using maximum bored standard hubs and minimum DBSE.
2) Maximum Unbalanced Speeds are based on AGMA 9000-C90 Class 9 with min DBSE and max interference bored coupling hubs

Dimensional Details

Coupling Maximum Bore 3 A B C1 C2 D
Size - Links DBSE Std. Hub Large Hub
Std. Hub Large Hub (mm) (mm) (mm)
15 - 6 (mm) (mm) 25.4 89 (mm) (mm) 60
35 - 6 32.3 110 36.5 36.5 75
70 - 6 45 60 32.3 133 46.0 46.0 100
150 - 6 54.9 170 58.7 58.7 130
330 - 6 55 74 77.7 205 74.5 74.5 163
480 - 6 85.7 230 90.0 90.0 181
75 90 95.0
-
95 112

120 140

130 -

3) Maximum Bore assumes an interference fit with a rectangular key.

NOTE: The CB Coupling is used on 3 bearing systems, and only accepts angular and axial misalignment.

Do not use where offset misalignent occurs.

20

AUTOFLEX SERIES HVII

TYPE CT-ES COUPLINGS (COOLING TOWER)

The Autoflex CT has been designed specifically for cooling tower drives The CT coupling can also be supplied with optional bolted on cartridges.
with very long shaft separations. The driveshaft is made from a corrosion The major advantage of the bolted cartridge design is the ease of repair
resistant, lightweight composite fibre material. Composite fibre has been and replacement and the rationalisation of spares.
proven to provide the optimum combination of stiffness in a lightweight Two cartridge packs can be used as spares for a number of couplings.
package.
The coupling can be supplied in two styles
CT-ES - Economic Spacer arrangement
CT - ECS - Drop out Spacer arrangement

C DBSE C

ØB
ØD
Max Bore

ØE

CT ES Coupling
(Economical Spacer Arrangement)

Technical Details

Coupling Rating Torque Rating Weight 3 Weight per Inertia 3 Inertia per Misalignment
at 1m m. of extra Axial Offset per DBSE
Size - Tube Dia. HP/100 rpm Cont. 1 Peak 2 DBSE (kg/m) at 1m DBSE m. of extra DBSE (mm) Lgth (mm/mm)
(Nm) (Nm) DBSE (kg)
(kgm2) (kgm2/m) 1.12
1.12
70 - 3 73 700 1,240 8 1.25 0.017 0.002 1.33
2.45 0.042 0.015 1.33 8.2
70 - 6 73 700 1,240 12 1.25 0.030 0.002 1.57
2.45 0.056 0.015 1.57
130 - 3 136 1,000 2,000 11 1.65 0.068 0.005 1.79
3.25 0.15 0.035 1.79
130 - 6 136 1,300 2,600 15 1.65 0.13 0.005
3.25 0.22 0.035
220 - 4 230 2,200 4,400 17

220 - 8 230 2,200 4,400 27

330 - 4 262 2,500 5,000 26

330 - 8 346 3,300 6,600 35

1) Torque values listed are for a service factor of 1.0. Standard service factor for cooling tower applications is 1.50.
2) Ensure peak capacity covers for maximum start-up torque.
3) Weights and Inertias are calculated using maximum bored standard hubs and 1m. DBSE.

Dimensional Details

Coupling 4 Maximum DBSE 5 B C D E
Size - Tube Dia. (mm) (mm)
Max. Bore at 1500 rpm at 1800 rpm (mm) (mm)
(mm) (mm) (mm)
91 83
70 - 3 66 3.23 2.95 133 57.5 91 159
96 83
70 - 6 66 4.45 4.06 133 57.5 96 159
114 111
130 - 3 70 3.23 2.95 152 65.0 114 210
134 111
130 - 6 70 4.45 4.06 152 65.0 134 210

220 - 4 83 3.73 3.40 180 75.0

220 - 8 83 5.28 4.83 180 75.0

330 - 4 98 3.73 3.40 205 90.0

330 - 8 98 5.28 4.83 205 90.0

4) Maximum Bore assumes an interference fit with a rectangular key.
5) Longer DBSE's are available - consult Autogard Engineering.

NOTE: Other sizes available - consult Autogard Engineering. See opposite page for Oversize Tube Designs. 21

AUTOFLEX SERIES HVII

TYPE CT-ECS COUPLINGS (COOLING TOWER)

CT ECS Coupling
(Drop out Spacer arrangement)

Optional Bolted Cartridge Assembly

Oversized Tube Design - for longer DBSEs

Technical Details

Coupling Rating Torque Rating Weight at 1m Weight per 3 Inertia per Misalignment
DBSE m. of extra m. of extra DBSE
Size - Tube Dia. kW/1000 rpm Cont. 1 Peak 2 (kg) Inertia Axial Offset per DBSE
(Nm) (Nm) (kg/m) (kgm2) (kgm2/m) (mm) (mm/mm)

70 - 3 73 700 1,240 11 1.25 0.027 0.002 1.12
70 - 6 2.45 0.052 0.015 1.12
130 - 3 73 700 1,240 15 1.25 0.050 0.002 1.33
130 - 6 2.45 0.076 0.015 1.33 8.2
220 - 4 136 1,000 2,000 16 1.65 0.12 0.005 1.57
220 - 8 3.25 0.20 0.035 1.57
330 - 4 136 1,300 2,600 20 1.65 0.23 0.005 1.79
330 - 8 3.25 0.32 0.035 1.79
230 2,200 4,400 26

230 2,200 4,400 36

262 2,500 5,000 38

346 3,300 6,600 48

1) Torque values listed are for a service factor of 1.0. Standard service factor for cooling tower applications is 1.50.
2) Ensure peak capacity covers for maximum start-up torque.
3) Weights and Inertias are calculated using maximum bored standard hubs and 1m. DBSE.

Dimensional Details

Coupling 4 Maximum DBSE 5 B C D E
Size - Tube Dia. (mm) (mm) (mm) (mm)
Max. Bore at 1500 rpm at 1800 rpm
(mm) (mm) (mm)

70 - 3 75 3.23 2.95 133 58.7 100 83
133 58.7 100 159
70 - 6 75 4.45 4.06 152 65.0 111 83
152 65.0 111 159
130 - 3 80 3.23 2.95 180 75.0 131 111
180 75.0 131 210
130 - 6 80 4.45 4.06 205 90.0 163 111
205 90.0 163 210
220 - 4 95 3.73 3.40

220 - 8 95 5.28 4.83

330 - 4 120 3.73 3.40

330 - 8 120 5.28 4.83

4) Maximum Bore assumes an interference fit with a rectangular key.
5) Longer DBSE's are available - consult Autogard Engineering.

22 NOTE: Other sizes available - consult Autogard Engineering.

AUTOFLEX METAL MEMBRANE COUPLINGS FAXBACK FORM

Information for the Selection of Autoflex Couplings The Driver equipment
(Electric motor, turbine, etc.)
Customer Name & Address

Post Code

Contact Name The Driven equipment
Phone / Fax No. (Pump, Conveyor, etc.)
E-mail Address
Duty Speed

rpm

Shaft Length DBSE Shaft Length

Driver Power

kW

DBSE

mm

Driver Bore Size

mm

Give full details on appropriate sketch

Ø Ø Driven Bore Size
Tol Tol
mm
Driving Hub Driven Hub
Give full details on appropriate sketch

Ambient Temperature
Degs. C

Key Parallel to Axis Shaft Length DBSE Shaft Length
Key Parallel to Bore C'Bore Ø

Taper Bore Details Ø Options (Tick if required)
Sah ft Ø Tol Balanced (Indicate Grade)
End: Large Small Spark Resistance
Tolerance: C'Bore Depth Puller Holes
Taper Angle: Insulated
Driving Hub Driiv ng Hub Axial Adjustment
Driven Hub Driev n Hub Limited End Float
Trim Balance Holes
Key Parallel to Axis Shaft Length DBSE Shaft Length Key Parallel to Axis Profiled Hubs
Key Parallel to Bore C©Bore Ø Key Parallel to Bore Specifications API 610

API 671
None

Taper Bore Details CB© ore Ø Taper Bore Details
Shaft Ø Shaft Ø
End: Large Small C©Bore Depth C©Bore Depth End: Large Small
Tolerance: Driving Hub Tolerance:
Taper Angle: Taper Angle:

Driven Hub

OTHER AUTOFLEX PRODUCTS

SamiFlex Elastic Couplings Autogard Series 200 Torque Limiters Autogard Series 300 Torque Limiters Monitorq - Torque Sensors

Autogard Series 400 Torque Limiters Autogard Series 600 Torque Limiters Autogard Series 800 Torque Limiters Autogard Power Monitors

Head Office American Autogard Corp. Autogard Italy
British Autogard Limited Rockford, Illinois Milano, Italy
Cirencester Tel +1 815 229 3190 Tel +39 02 92 592083
Glos GL7 1YT Fax +1 815 229 4615 Fax +39 02 39 305616
United Kingdom [email protected] [email protected]

Tel +44 (0) 1285 640333 Autogard Kupplungen Autogard Asia Pacific P/L
Fax +44 (0) 1285 659476 Barntrup, Germany Melbourne, Australia
Tel +49 (0) 5263 954960 Tel +61 (0) 3 9532 0901
Email [email protected] Fax +49 (0) 5263 954969 Fax +61 (0) 3 9532 1032
Web www.autogard.com [email protected] [email protected]

For further information on Your Local Distributor Designed and Produced by The Lines Group Ltd Cheltenham
Autogard product range and
technical specifications visit:

www.autogard.com

MMC 11/04